Which of the following elements can be corrected using smectite?
Explanation
Smectite clay has the ability to fix potassium ions (K⁺) effectively. It does not fix magnesium (Mg) or ammonia (NH2). Therefore, the correct answer is potassium (K).
Smectite clay has the ability to fix potassium ions (K⁺) effectively. It does not fix magnesium (Mg) or ammonia (NH2). Therefore, the correct answer is potassium (K).